Sectional boiler.



FFSE,

Sjeeiceion of Letters Feceni.

Pawnee@ @inl-v 13, 1%15 of 'uli :cine -ype in. which the .r-.ey muy lie obeineii for the fuel emi 'ler 'which may be readily fuel oE eey size without the boiler.

o provide bf 1n. EL 1V. agay/eo eo man inigiznring e eiieieney of rcliei) .inl invention ir.: it objeel, irovnle a maggezine boiler having an infl einige, und. linee, so arranged. relaid @wie 'ne, lie `air ell gares lironggl'r lie grate at 1 mereto, and as continues its a ilienee nass into the iiues 'which :f enez'anee portions else arranged *i said ginie.

ent-nin has or. ebjee; f .e a magazine lmilex in which lthe are so arranged relaively izo each d from y the npper foi-:auml elige eliei'eol'.

ifmffeliei'., Haul mJenLum une 'for olxjeet if.; provide n, boiler in which ille faire of the opening leading to lie inclined grail@ may lne readily in-ei'eafwi er diminished aCeording); Le the eiiae'aeter oi the fuel employed.

lai'lzei'. Sani, invention llas fer ibs objee'i eo provide a boiler with means for in foelneing nir in a plurality of Small jets t the combustion eliemlier thereof.

Further Said inveniion lue` im iin object im gwoviflefi boiler having an inolineilA grate,

il liars olf wliifli are so amante, fl as to e y. linnn-eel; @when of the feel dieremamlmmes z ljaeenl, izo izlie upper ai ille mme lime proven@ elio iinel highest inea@Y ure l is a from elevation showing. one

, form of sectional. looiier eenstreeefi according io, and embodying my said invention., and Fig-g. Q is a vertical see'ion taken on the line 2-2 of Fig. l.

in. sai@ lrawings the boiler shown is of the sectional type comprising a' series of in terniediete verticali flue sectionss 10, 10, secured to each nher and to conforming end sections il, li.'

n the construction lnstrate the looiler is shown compose of eight vertical -seetiene or eiements, of which each two ajoim ing sections or element-s consti'ue e Workin unie. The seiil. sections or elements ai. their lower forward portion unite with a from; plate 12 which is suitably secured thereto? and profied with a plurality of elinlier cioors i3, 13, and below said @linker doors with an asli-pi opening and door 14.

Each working unit is provided at its upper portion with a fuel magazine l leaving a downwardly and forwardly inciined bo?,- toni 16 provided with en opening 17 :ii: its lowermost portion, which with the combustion chamber. The forward portion of the magazine floor along the eflge of the opening 17 is recessed at 18 to receive comnmnicaies an adjustable plate 19 provided at its rear state.

f3 integree horizontally extended surfaces forming a grate 23, eonngnising a series et grate bars 24C, 2larranged one above the other and each having its forward edge extending beyond the forward edge of the bar next below. rlhe grate is arranged at an angle of about degrees, and the bars 24, 2l thoreoil are so disposed horizontally rela* tively to each other as to permit of the use of any size fuel, and to prevent the saine dropping unconsunied over 'the front edges of said bars and into the ash pit. By arranging the grate Q3 at about an angle of 45 degrees, it bril the saine substantially at an angle oit' 9G degrees to the base of the fuel magazine, and by means of the adjustable plate 19 the fuel is deposited upon the grate in such manner that the thinnest portion of the fuel bed is at the top oit the grate, and the portion supported upon each grate bar is broadest at its base resting upon the bar and thinnest at its upper portion iinniediately below the grate bar next above. This permits the air to pass through the inclined bed of fuel at its thinnest portions, and enter the coi'nbustion chamber in ay series ot parallel superposed layers 0ilv air each coinposed of numerous small jets.

Between each pair olf 10 adjacent to the lower end of the inclined grate 23 is a piifoted or revoluble shaking grate bar Q53 which has its rear end supported in the rear wall of the ash pit, and

its forward end extending through the front plate l2 The extreme projecting end of said shaking grate bar 25 is squared to re-' ceii'e the end of a suitableI tool for actuating said bar, and directly to the rear of said squared end is provided a greci/ed collar 36, adapted to receive the depending lugs 27, 27 of a. locking bar 2H niovably supported in guides 29, 29 secured upon the front plate l2.

30, 30 denote lues which are arranged partly in each two opposing sections l0, lll Each ilue has an inclined flaring entrance portion 3l, and a` constrieted portion 32 eX- tending upwardly and rearwardly therefrom. The entrance portion 3l of each line is made substantially lco-ex'tensive in length with said inclined grate 225, and arranged parallel thereto. .lllaeh (lue has its entrance portion and the eonstricted portion leading therefrom arranged longitudinally at right angles to the inclination ol the grate Q3, and has its entrance portion, which is substantiallyv co-extcusire in length with said inclined grate 22?, arranged gymrallol thereto. 'lhus providing a sulliciently large combustion chamber portion directly facing the grate into which Ithe hot gases may pass immediately upon being lioeraled, and while the saine are in a most highly expanded li'roin the rear end oi! the constricted portion 32 the line 30 is carried r iarWard, downward and biavard, and thence vertive 'tical sections l0,'

vcally downward, and upward part Way to the smoke outlet. In order to heat the Water more effectively, the entrance portion 3l and eonstrieted portion 32 of each lue is provided with longitudinal fins 35, 36, 36.

ln order to obtain a more perfect combustion oi `the fuel, the sections l0, l0 .may be provided upon their opposing aces with recesses to receive air blast pipes 37, 38 hav-v ing outlets 39, Ll() respectively arranged adjacent to the entrance portions 31 of the fines. @ne of said pipes, as for example the pipe 37, may be carried upwardly into the magazine, and the other downwardly into the ash pit and connected to a suitable source oi' air supply'.

The operation of the boiler will be obvious freni the foregoing description. However, it is to be noted that by arranging the floor of the magazine so to extend downward and forward, and arranging the inclined grate at substantially right angles to the licor of the magazine the fuel is caused to be deposited upon the grate 'in a relatively thin .layer adjacentto the upper endy et said grate, which layerbecoines thicker as it extends downwardly to the shaking grate. By this arran rement a liberal supply of air can be fed through the thin layer of fuel to the combustion chamber to the point therein 95 the saine is niost etlective in combining with the het gases liberated by the fuel. Y

Further, it is to be noted that by providng the opening the base of the magazine with anadjustable slide the extent of said 100 opening may be 'varied to deposit the fuel upon the upper portion of the grate in a layer of any desired thickness regardless of the size ol; the fuelemployed7 and thus insure the proper supply of air therethrou h 105 to mi); with the products of Combustion li erated in the combustion chamber- H'aving thus ii'lescrbedmy said invention, what l claim and desire to secure by Letters "atentis:

l. ln a boiler, the combination with an inclined grate, ol"l a 'tortuous Hue extending therefrom having its entrance portion arranged substantiall f at right angles to said grato and provided with a. plurality of 1on- 115 gilziulinal ilus., said entrance portion comprising a constricted outlet portion' and a. llaring mouth disposed parallel to said groter; i and eti-extensive in area therewith and ex posed directly to the entire bed of incan (.130

descent fuel. upon said grate, substuntiall as specified.

.ln a boiler, the combination with an in" elined grate, ot' a. tortuous'flue extending thereioni haring its entrance portion ar- 1,25.;

rangedsubstantially at right angles to said grate and provided with a plurality of l0n-v gitudinal tins, said entrance portion coinprising a eonstricted outlet and a llarin mouth disposed parallel te said grate, an I" I there from lewin Lime ineiinef grate, of a. forneas iue extending gime sind irevided wih a, pluieiy of iongiudinnl line, seid entience portion honiprising fi confzsricecl ouiie. and a flaring li disposed parallelA o seid ginie and dii'ec'ciy heieo :find :menne lei conducing siii' te seid flue und diselieiging the seme in c. fie oi.' sepeifeed ich@ ti'sinsveisely siciixzfi wie monili fine :ind parallel "'li-liie edge ilieieof, enlislzentialiy as speciiec.

1 -n e, boiler ehe inclined gicle; ei

cenibinsiliiei'i wiih in 'i ens iliie exending .g ence portion a1'- iengeil siihntenlielly el. righ?. englee o said grate und pri'lvided wiili :i gliiinliy of loneznti'i portion comcezisti'icied ciuieei panni-el. to @wie and a to ve afee tliez'cwith and erizpesed` i let, and s, 'iazing' co-exteneive in cree therewith and exposed directly thereto, and an nir pipe extending .inte said flue hex/ing; its discharge portion :uizinged adjacent te and parallel with said flaring month, substantially as speciiied.

5. ln :i boiler, the combination with an in clined grate, of e. terminus, flue extending therefrom having 'anged substantially nt right angles to seid grate and provided with a plurality of lon` gilidinnl fins, said entrance portion compiising :L constiieted outlet and a Haring mouth dieposed parallel to seid grate and eo-exensive in aree therewith and exposed directly te the eniz'e hed of incandescent fuel upon said gre-ie, and :iiipipcs located in opposite sides of said liuc having dis#I charge openings vin their opposing portions for projecting air in n series of jets iran veisely @cross said line adjacent to themouth iiei'eof, siibstaniaily specified.

Signed et `he city oi' Chicago, Cook county, in the State of llinois, this 2nd day ol' July, nineteen hundred and Itwelve.

Ull/'kliLllS B. THOMISN. l/Vi'tnesses R. J. HAMILTON, E J. KEARNS.

its entrance pol-Lion allev 

